Hand animation still plays in creative when trying to use minecarts inside each other on the same rail

Minecarts should not be placed inside one another per the recent changelog. Quote: "Minecarts can no longer be placed within another Minecart by the player or a dipenser"

Steps to Reproduce:

1. Place a rail

2. Place a minecart

3. Try and place another minecart

Expected Result:

The hand animation should not play at all, because nothing is done, no minecart is created.

Observed Behavior:

The hand animation shows, despite nothing being placed/spawned.

Screenshots/Videos:

Notes:

Related to MC-275205 MC-275224